Nagios XI up to 2011R1.8 backend_url cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Nagios XI up to 2011R1.8. This impacts an unknown function. The manipulation of the argument backend_url results in cross site scripting. This vulnerability is reported as CVE-2011-10036. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Nagios XI up to 2011R1.8. It has been classified as problematic. Affected is an unknown functionality. The manipulation of the argument backend_url with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Nagios XI versions prior to 2011R1.9 are vulnerable to cross-site scripting (XSS) via the handling of the "backend_url" JavaScript link. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

The weakness was disclosed by 0a29406d9794e4f9b30b3c5d6702c708. The advisory is available at nagios.com. This vulnerability is traded as CVE-2011-10036 since 10/28/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 2011R1.9 eliminates this vulnerability. The upgrade is hosted for download at nagios.com.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: XI 2011R1.9

Timelineinfo

10/28/2025 CVE reserved
10/31/2025 +3 days Advisory disclosed
10/31/2025 +0 days VulDB entry created
11/07/2025 +7 days VulDB entry last update

Sourcesinfo

Advisory: nagios.com
Researcher: 0a29406d9794e4f9b30b3c5d6702c708
Status: Confirmed

CVE: CVE-2011-10036 (🔒)
GCVE (CVE): GCVE-0-2011-10036
GCVE (VulDB): GCVE-100-330702

Entryinfo

Created: 10/31/2025 07:56
Updated: 11/07/2025 23:42
Changes: 10/31/2025 07:56 (70), 11/07/2025 23:42 (11)
Complete: 🔍
Cache ID: 216::103

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